import a from './a'
import c from './c'
// import b from './b'
// import d from './d'
// import {cc} from './c'
setTimeout(()=>{
  //使用  /*webpackChunkName:''*/  给分割出来的JS文件命名
  import(/*webpackChunkName:'async_d'*/'./d.js').then(res=>{
    console.log(res)
  })
},5000);
(()=>{
  console.log(a);
  console.log(222)
  console.log(c);
 })()

